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Girder
Truss
Side Girder/Truss
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Suspended
Single Unit
Covered Bridges
Side Girder (Timber)
Deck Girder (Timber)
Longitudinal Glued-Laminated Deck
Traditional Covered Bridge

Types

Covered Bridges

Traditional covered bridges were essentially side truss bridges. Most modern covered bridges use conventional side girders or deck girders. The covering is simply added to the top of the bridge.


Side Girder (Timber)

Typical span 50 to 90 feet

Additional Pictures:

Example sketch of a covered side girder bridge
ROS Classes: black from U to R to RN to SPM, shading from SPM to SPNM, white from SPNM to P

Deck Girder (Timber)

Typical span 40 to 80 feet

Additional Pictures:

Example sketch of a covered deck girder (timber) bridge
Photo of a covered deck girder bridge
ROS Classes: black from U to R to RN to SPM, shading from SPM to SPNM, white from SPNM to P

Longitudinal Glued-Laminated Deck

Typical span 10 to 25 feet

Additional Pictures:

Example sketch of a covered longitudinal glue laminated deck bridge
Photo of a covered bridge

Traditional Covered Bridge

Typical span 40 to 300 feet

Photo of a covered bridge Photo of a covered bridge